Disable two recent Channel ID-related CLs to investigate a secure QUIC performance degradation.

net/quic/quic_stream_factory.cc

Index: net/quic/quic_stream_factory.cc
diff --git a/net/quic/quic_stream_factory.cc b/net/quic/quic_stream_factory.cc
index c4586604e4471d1fca123f6f90b058c90b3534ea..f9f6802633f8e0952ddd3081bb800726f5aea3ea 100644
--- a/net/quic/quic_stream_factory.cc
+++ b/net/quic/quic_stream_factory.cc
@@ -485,8 +485,12 @@ QuicStreamFactory::QuicStreamFactory(
   crypto_config_.AddCanonicalSuffix(".c.youtube.com");
   crypto_config_.AddCanonicalSuffix(".googlevideo.com");
   crypto_config_.SetProofVerifier(new ProofVerifierChromium(cert_verifier));
+  // TODO(wtc): a temporary change to investigate the performance degradation
+  // caused by Channel ID lookup.
+#if 0
   crypto_config_.SetChannelIDSource(
       new ChannelIDSourceChromium(server_bound_cert_service));
+#endif
   base::CPU cpu;
   if (cpu.has_aesni() && cpu.has_avx())
     crypto_config_.PreferAesGcm();